Trifluoromethylsulfonyl

Triflyl, more formally known as trifluoromethanesulfonyl, is a functional group with the formula F₃CSO₂–. The triflyl group is often represented by –Tf.

The closely related triflate group (trifluoromethanesulfonate) has the formula F₃CSO₂O–, and is represented by –OTf.

See also

• Triflyl azide, TfN₃
• Triflic acid, TfOH
• Methyl triflate, MeOTf
• Trioctylmethylammonium bis(trifluoromethylsulfonyl)imide, [MeN(C₈H₁₇)₃⁺][NTf₂⁻]
• Comins' reagent